Insulating device.



PAIBNTED MAY 14, 1907 L. STEINBERGER. INSULATING DEVICE.

APPLIOATION FILED MAR.29. 1906.

/N VEN ro/i' lowly/a ain ez'gw' 7 By Mi (ZO A oHA/Ersi ouis STEINBERGER,

OF NEW YORK, :N. Y.

INSULATING DEVICE- Specificationof Letters Patent.

Patented May 14, 19 07 Applioation filod March 2Q, 1206. semi No. access.

To all whom it may concerni- Be it known that I, LOUIS STEINBEBGER, a citizen of the United'states, and a resident of the city of New York, borough of Brooklyn,

in the county of -Kings. and State of New York, have invented a new and Improved- Insulatmg Device, of which the following is a full, clear, and exact description.

My invention relates to insulating devices of the general character used for supporting conductors carrying heavy currents.

Among the several objects of my invention are the following31. To provide an insulator pin" containing a strengthening meniher of insulating material completely embed- (led therein; To increase themechanical and dielectric strength of this strengthening member. 3. To make certain provision for rcnderiin the insulatiln oinwater-ti lu; at

b b 1 i "I the cross in" .1 for the purpose of inaintaini.

side andawayi'rom the cross arm 9. Ti

its base; 4. To render a certain region encircling the base of the pin as dry as possible; 5. To provide an improved ater-shedding course for conveying moisture away iro n the pin and cross-arm; 6. To increase-the insulating qualities of the pin end its accompany. ing parts; 7. To provide upon the piiror anelogous member a drip edgiraised ahove the letter comparativeh dr at the point ar-out to the hole in the cross arm; provide certain facilities ior holding the win "I X upon the cross-arm and'to carry oh the water running down thc'body oi the pin to either ply certain mechanical details of con tion for improving the mechanical strength of the insulating parts and of improving the general ciiicicncy thereof; it). To pro I c a novel means for strengtheninga'mcn. r ingalongitudinal conformation; 1 Ti pro vidc' a composite strengthening member 5 up from a plurality of tubular portion ii. To providc a composite streugtlicuing her made up from a plurality of tubular 'tious and a solid coremrtion; and i3. make certain provision ior protecting the insulatiugpin at its base and for protecting tain portions of the cr'oss arm adjacent to this base from water; snow, etc.

One form of my invention is shown in the accompanying drawings forming a part of this s ecihcatio'n, in which similar characters provided with my improved insulator pin;

ther provided n Fig. 2 is' a plan "710 11 of the same; Fig. 3 isle vertical central section, upon the line 33 'n Fig. 2, looking in the direction of the arro and showing the conformity of the we shedding course and the I y space separat' the same from the cross-arm; and Fig. 4i 9. central vertical section upon the line 44 lin -52, ioohing in the direction of the arrow and showing further the appearance of the water-sheddin course; also showing how;

this course is elevated above the crossamllat certain portions and depressed below the up per surface of the cross arm; at other portions than those shown in Fig. 3; and 5 is a section on the-line 5-5 in Fig. 4. i i

The cross-arm is shown at 5 the pin body at 6, and a thread terminating the upper end of the pin body at 7. A Weather shield8 is made of insulating material and is integral with thepin body 6. This weather shield is provided with a trough 9, heving depressed portions 10, as indicated more particularly in Figs. and :2. The "weather shield 8 is fura;

"h raised edges 8 formin fio the outer boundary of the trough, and with drip surfaces 112- raise-zi above the cross-arm and separated thcrei'rom o a spa-0e12," as indicated in Fig. 3, This space is practically continued at 13% as indicated in Fig.4 and is annular. A central solid rod IL preferably o'r' fiber; dry wood or otherinsulatingmateriai, is encircled in" a plurality of tubes 11%. il also of insulating material, prcferahl iihcr, mice or other material having consido creole mechanical strength thus forming a composite eorc which-is embedded Within tlie pin oody and concentric therewith. The )UTPOSG of this member is to coufcr mechancai strength and also to iucrcase the insulatqualities of the pin body. The matfcriais of which they are made should prcfclrahl ihavc dillercut dielectric constants, as improves thcdcgrce of insulation attained.

its to mechanicalstrcngl h. it may hc stathd [00 that in nature and art the c \'lindi'ical form is the host known for so utilizing a given quantity of material as to confer upon it the greatesteifcctive strength. The pin hody is 1'0- vided with an annular shoulder 12 wiich directly engages theupper surface of the cross-arm, and is also provided with a stem 14. Embedded within this stem is ametallic sleeve 15 provided with a slot 16 and'u ithiau annular flange 17, this slot and flange serying to anchor the sleeve immovably within the stem 14. The sleeve 15 is embedded within;

the stem 14 while the latter is in plastic condition. A screw 18 is titted into the sleeve which is threaded inwardly for the purpose of receiving it. A washer 19 encircles the screw stem 18, and threaded upon this screw stem is a Hit 20. To mount the insulating pin in position it is raised above the cross arm, the stem 14 is inserted as indicated in Figs. 3 and 4, the washer 19 is placed in po- 1o,sition, and the screw 15% is then screwed into the sleeve 15. The shoulder 12 is thus drawn down hard 1 pon the upper surface of the cross arm and forms an annular watertight joint therewith. As above explained, around this water-tight joint is a dry space 12 of annular form which still further inereases the insulating qualities of the pin. il loisture collecting in the troi'gh 9 is caused to drifttangentially in a lateral direction and downwardly, so as to aecumr-latc at the point 10, when it. is discharged so as to miss the cross arm. "In this way, even in the severest rain, no ater *an accimir-late upon the cross arm in the immediate vicinity of the shoulder 12, the latter being encircled as above explained by an insulating space. it. will be noted that the metallic sleeve 15 and the central composite core are completely separated. This improves the dielectric property of the insilating pin.

it will be evident to those skilled in the art that many changes in construction, form and atrrangcnicnt ot the parts may be resorted to withoi-t departing from the spirit or scope oi my invention. l therefore do not limit myself to the exact l'orm shown, nor to the details of any or all of the parts herein s iecilied. Nor do I limit myself to any particular co'ubination of parts or to the tee of any prescribed materials for the insulating materials for the insalating material; however, 1 generally employ the material known in the art as electrose.

Having thus described my invention, I claim new and desire to secure by Letters Patent:

1. An insulating device, comprising a pin body providedwith a stem for entering a cross arm and with a shoulder for forming a water-tight joint with said cross arm, sai pin body being further provided with a weather shield integral therewith and having a spaccintermediateof said shoulder and said weather shield.

2. An insulating device, comprising a pin body provided with a weather shield integral therewith, said weather shield being provided with a trough, means for mounting said pin body on a cross arm and for sustaining said Weather shield out of contact with said cross "arm, and means'lor supporting an insulator.

3. An insulating "device, comprising a pin sears-a body of insulating material provided with a weather shield integral therewith and having two opposite sides extended in the form of downwardly- )rojecting members.

4. An insulating devicc, comprising a core of insulating material. and a body portion of insulating material encircling the same, said body portion being provided with means for supporting an insulator and with means for mounting said body portion.

5. Pin insulating device, comprising a Sl1) aorting pin provided with a weather shield having a restricted water course, and means for mounting said pin to a cross arm, said weather shield being disposed above said cross arm and out ot contact t-hcrcwith.

6. An insulating device, comprising a body portion of insulating material, a. strengthening core also of insulating material, the said core being enveloped by the body portion, and means for mounting an insulator upon said'body portion of insulating material.

ff. An insulating pin, romprising a body portion ot insulating material provided with a portion for engaging a cross arm or other support, a strengthening member embedded within said pin body, and a lastening member rarricd by and anchored in the portion for engaging the cross arm.

8. An insulating device. comprising a pin body of insulating material having completely enveloped thcrchy a strengthening member built up ol a plurality of members tar-- ranged one within the other.

9. An insulating device, comprising a solid rod of insulating material, a plurality of tubes oi insulating material encircling the rod, and a mass oi" insulating material surrounding said tubes, said mass of insulating material being novided with means for supporting an insulator.

10. An insulating device, comprising a in body oi insulating material having a timelike member which is surrounded at its sides and ends bythe said insulating material.

11. An insulating device, comprising a body portion ot insulating material, and a strengthenin core also of insulating mate.- rial, the saiar core being ei'iveloped by the body portion, the body portion having its lower end in thetorni ot a member for engaging a support and tiu said core cxtendingjn the said supporting iricmber a portion of the length of the latter.

ln testimony whereof l have signed my name to this specification in the pl'cscnce of two subscribing witnesses.

LOU ti-l S'llll itltlllttll llt.

Witnesses:

Win/rot; llamuson, lCvnnAnn B. lllARSHALL. 

